JP2021192432A5

JP2021192432A5 - Semiconductor device

Info

Publication number: JP2021192432A5
Application number: JP2021128401A
Authority: JP
Filing date: 2021-08-04
Publication date: 2022-03-22
Anticipated expiration: 2036-12-15

Claims

A pixel has a first transistor to a third transistor and a light emitting element.
In the first transistor, one of the source and the drain is electrically connected to the pixel electrode of the light emitting element, and the other of the source and the drain is electrically connected to the current supply line.
In the second transistor, one of the source and the drain is electrically connected to the signal line, and the other of the source and the drain is electrically connected to the gate electrode of the first transistor.
In the third transistor, one of the source and the drain is electrically connected to the wiring, and the other of the source and the drain is electrically connected to the pixel electrode.
The first conductive layer having a function as the current supply line is arranged in the same layer as the second conductive layer having a function as the signal line.
The first conductive layer and the second conductive layer are arranged above the third conductive layer having a function as the wiring.
The third conductive layer is arranged above the gate electrode of the first transistor.
The third conductive layer is electrically connected to a fourth conductive layer electrically connected to one of the source or drain of the second transistor and to the other of the source or drain of the second transistor. The fifth conductive layer is electrically connected to one of the source or drain of the first transistor, and is electrically connected to the other of the source or drain of the third transistor. Placed in the same layer as the layer,
The third conductive layer has a region extending in the same direction as the first conductive layer and the second conductive layer.
The first conductive layer has an overlap with the third conductive layer and has an overlap.
The first conductive layer has an overlap with the gate electrode of the first transistor and has an overlap.
The first conductive layer has an overlap with the gate electrode of the third transistor and has an overlap.
The sixth conductive layer is a semiconductor device electrically connected to the pixel electrode via a seventh conductive layer arranged in the same layer as the first conductive layer and the second conductive layer.

A pixel has a first transistor to a third transistor and a light emitting element.
In the first transistor, one of the source and the drain is electrically connected to the pixel electrode of the light emitting element, and the other of the source and the drain is electrically connected to the current supply line.
In the second transistor, one of the source and the drain is electrically connected to the signal line, and the other of the source and the drain is electrically connected to the gate electrode of the first transistor.
In the third transistor, one of the source and the drain is electrically connected to the wiring, and the other of the source and the drain is electrically connected to the pixel electrode.
The gate electrode of the second transistor and the gate electrode of the third transistor are electrically connected to different scanning lines.
The first conductive layer having a function as the current supply line is arranged in the same layer as the second conductive layer having a function as the signal line.
The first conductive layer and the second conductive layer are arranged above the third conductive layer having a function as the wiring.
The third conductive layer is arranged above the gate electrode of the first transistor.
The third conductive layer is electrically connected to a fourth conductive layer electrically connected to one of the source or drain of the second transistor and to the other of the source or drain of the second transistor. The fifth conductive layer is electrically connected to one of the source or drain of the first transistor, and is electrically connected to the other of the source or drain of the third transistor. Placed in the same layer as the layer,
The third conductive layer has a region extending in the same direction as the first conductive layer and the second conductive layer.
The first conductive layer has an overlap with the third conductive layer and has an overlap.
The first conductive layer has an overlap with the gate electrode of the first transistor and has an overlap.
The first conductive layer has an overlap with the gate electrode of the third transistor and has an overlap.
The sixth conductive layer is a semiconductor device electrically connected to the pixel electrode via a seventh conductive layer arranged in the same layer as the first conductive layer and the second conductive layer.

In claim 1 or 2,
The first conductive layer to the seventh conductive layer is on a first film containing titanium or titanium nitride, a second film containing aluminum on the first film, and on the second film. A semiconductor device having a third film containing titanium or titanium nitride, respectively.

In any one of claims 1 to 3,
A semiconductor device in which the area of the sixth conductive layer is larger than the area of the fourth conductive layer in a plan view.

In any one of claims 1 to 4,
A semiconductor device in which the area of the sixth conductive layer is larger than the area of the fifth conductive layer in a plan view.